I have completed numerous projects; however, the contracts with my clients have not been officially closed yet. Consequently, I am currently available to take on new assignments. My name is Long, a graduate of Hanoi University of Science and Technology, specializing in Control and Automation. I have extensive experience working primarily with ESP32, nRF52, and STM32 microcontrollers. My expertise focuses on embedded and IoT systems, including the development of applications using RTOS-based architectures and well-structured state machines to ensure reliability and scalability. I have strong experience in LCD-based user interfaces using LVGL, enabling the creation of responsive and user-friendly embedded GUIs. In addition, I have implemented OTA (Over-The-Air) firmware update mechanisms and worked with wireless communication protocols such as Bluetooth and Wi-Fi. I am highly proficient in C programming and have in-depth knowledge of common peripherals, including UART, SPI, and I2C. I possess strong problem-solving skills, the ability to work independently, and effective collaboration skills within multidisciplinary teams.

I can turn your project or an idea into reality, from conceptual design to building a working prototype and a small production run if needed. I specialize in: - Computer Vision research and development - Machine Vision system integration - Algorithm development - High performance implementation of image processing and computational geometry algorithms in C++ and Python - Robotics and mechatronics prototyping - Embedded systems prototyping

I am professional of electronics, focused on designs and medium and low scale production. With more than 25 years of experience i feel each new customer is a new friend, because we offer thrust, because i are on your side: My success is your success. Want to continue being your provider even after 20 years. Our knowledge of all product stages, allow to create projects with following specifications: 1. Low production cost 2. Easy to use 3. Good reliability 4. Long lifetime 5. Easy to manufacture 6. Space/size optimized Constant training allow to offer the best technology available for developments. Including complex design as GPS, WiFi, IOT and portable devices without deprecate simple things such audio amplifier. Skillset: 1. Idea to product on store knowledge 2. Schematic/Circuit design 3. PCB Design single/2/4/6 layers insertion/SMD 4. BOM according best relation of availability, volume, and required technologies 5. Best Production cost. 6. Pre built Case/ 3D / Plastic injection 7. Normalized design process 8. Technical document with used formulas, block components discarded an Services: 1. Free of cost consultation. 2. PCB Prototyping and components Procurement Support 3. Firmware in C, C++, assembler, Android, Perl, PHP 4. Production support if required 4. Project maintenance 5. Customer Satisfaction Techs: 1. Analog / digital / Microcontroled / SOC 2. Sensing: Temperature, humidity, pressure, speed, flow, geolocation, etc. 3. WiFi, Bluetooth, RS232, LIN, Lora, Ethernet, Xbee, Cloud 4. C, Perl, php, Arduino 5. Portable, autonomous, or AC powered. 6. Many techs more.

I have over 22 years of experience working and consulting for tech companies in Silicon Valley. Every technical challenge that I had overcome assured me that with the right frame of mind, I could accomplish anything. Engineering is also my hobby, and I have been doing it since before high school. I was born with a soldering iron in one hand and writing code with the other. I designed the hardware for over 100 projects, most of them being sold today. Some notable ones are Snapchat Spectacles (designed most of the electronics and PCB layout), Thornwave Labs' Bluetooth DC Power Meter (PowerMon) and all the other projects on the webpage, various RF modules (RN-171, RN4020, RN52), and development boards designed while working at Microchip. I also created production testers, lots of C/C++ programming, and firmware design. What I can do for you? --------------------------- High Level: project management, research. I am very experienced with hardware design and firmware, which allows me to integrate them more efficiently. Hardware: circuit design, component selection, electrical schematic, PCB payout. I am using Altium Designer. I will provide you with everything you need to go to manufacturing: Gerber files, NC drill, pick and place, assembly diagrams, 3D prints, 3D STEP model, and electrical schematics as well as offer support after the project is completed. I have experience with analog and digital design, RF, high-speed design, microcontrollers, highly complex boards, LCDs. I can run Spice simulations as well. I worked with various technologies and protocols: SPI, I2C, UART, USB, CAN, RS-485, Ethernet, Bluetooth, WiFi, and so on. Prototyping: I will manufacture the prototypes at a much lower cost than average. Over the years, I have developed working relationships with manufacturers in China, hence the cost-saving. I also have a lot of equipment: multimeters, oscilloscope, logic analyzer, vector network analyzer, USB protocol analyzer, power supplies, digital electronic load, soldering equipment, computers, and so on... Certifications: I can assist and oversee the certification process for FCC, IC, and others. Firmware development: I have 24+ years of experience coding in C/C++ and 20 years of firmware development. I can architect and develop your firmware from the ground up. I am exceptionally versed in the ARM Cortex line of microcontrollers: STM32 and Nordic. I will provide you with production-quality firmware. I know the ST and the Nordic microcontrollers like the back of my hand. I can get firmware done very quickly and efficiently for these chips. Software development: Basic tools running in Linux/Windows/Mac, basic GUIs. I can develop all the software tools you need for debugging, testing, and manufacturing. Manufacturing: If your project reaches this phase, I can offer contract manufacturing services. I will be delivering your finished product, ready to sell. The rate I displayed is an average number. It can vary up or down based on the complexity of the project. My rate reflects the experience and knowledge I have. I am good at what I do. Also, keep in mind that I will not bill you for hours like lawyers do for the time they spend in the shower thinking about the project. I will bill you only for the hours I spend advancing the project in a meaningful way.

Electronics hardware contractor specializing in PCB design, mixed-signal product development, high-voltage/high-isolation systems, hardware debug, manufacturing support, and embedded system integration for regulated or technically demanding products. Clients seeking precision in PCB design, signal processing, or biomedical applications can rely on my proven track record and dedication to excellence. My portfolio showcases detailed project work, including research on ECG and respiration. Let's collaborate to bring your project to fruition with technical expertise and innovative solutions. Top Skills: PCB Design & Simulation: Proficient in creating high-performance PCB layouts for complex electronic systems. Signal Processing: Specialized in ECG signal analysis and respiratory rate detection algorithms. Embedded Systems: Experienced in developing integrated systems for various applications. Biomedical Engineering: Research on the impact of respiratory signals on ECG outputs. Notable Projects: EEG Active Electrode Design, Testing, and Validation: Developed and validated cutting-edge EEG electrodes for enhanced signal accuracy. ESP32 ECG Implementation: Implemented ECG monitoring solutions using an ESP32-WROOM-32E.

9+ years in physical acoustics, vibration and ultrasound, for civil (buildings), consumer (ultrasonics) and industrial products, with experience in embedded, prototyping and new product introduction. PhD candidate in Ultrasonics, published author and inventor in few patents for a novel electromagnetic actuator. I offer laboratory services to: - Perform frequency response and impedance measurements. - Measure both airborne and waterborne ultrasound using lab-grade equipment. - Model, design and test piezo-based sensors including Langevin transducers. - Vibration isolated platform and vibration measurements. - Shaker testing and accelerometer testing. I am Member of Institute of Acoustics UK (IoA), and British Institute for Non-Destructive testing (BINDT). Areas of expertise: - Ultrasound: ultrasonic transducers including underwater, hydrophone measurements, piezoelectric and Langevin transducers. - Vibration: measurement using industry-standard accelerometers, signal processing, simulation using Finite Difference or Finite Element for buildings and products, transfer function measurements, setup of custom setups, ground-borne vibration analysis from trains, radiated noise, vibration actuator and custom vibration isolator design. - Haptics: design of haptic systems, and embedded programming of haptic actuators, including Texas Instruments DRV2605, and Rensas ASICs. - Measurements: Laser Doppler Vibrometer, Thermal measurements using FLIR systems, High-Speed Imaging, Radio Frequency (RF) - Programming: MATLAB and Python scientific programming and publication-level data analysis. - Prototyping: PCB design, etching and milling, Lathe and CNC metal work, soldering, reverse engineering. C and C++ for embedded development for Arduino and STM32. - Audio DSP design including testing of Acoustic Echo Cancellation (AEC) solutions, Acoustics Noise Cancellation ANC, Voice Activity Detectors, Cirrus Logic, Sigma DSP, Threshold Detectors, including open source algorithms such as WebRTC, SpeexDSP. - LabView applications for NI and non-NI devices with GUI interface, for testing, measurement and prototyping. Relevant achievements Served 20+ projects for clients worldwide since 2023. Sole inventor in 3 patent applications, 2023 Founded a company specialising in vibration feedback solutions, 2023 Published in Nature Scientific Reports and IEEE, 2021–2022 Presented my publications in IEEE Ultrasonic Symposium, 2021–2022

AI Solutions Architect | Edge AI, IoT & Embedded Vision | Full-Stack (Mobile/Web) | 2 Patents | 23+ Years Exp. Bridging the gap between hardware, cloud, and modern AI. With over 23 years of software engineering experience and 5+ years specialized in AI, I don't just write code—I architect complete, end-to-end ecosystems. My background spans from silicon-level embedded programming at industry giants like ZiLOG and Honeywell to building cutting-edge Generative AI and Edge Computing solutions for modern startups. I specialize in "Edge AI"—bringing intelligence out of the cloud and onto devices. Whether you need a RAG system for complex data processing, a computer vision model running on an ESP32/Nvidia Jetson, or a full-stack Flutter application with voice capabilities, I deliver robust, scalable, and patent-worthy solutions. Why work with me? Deep Industry Roots: Experience with major players (Honeywell, Cricut, ZiLOG) and 2 filed patents. Full-Cycle Architect: I handle everything from PCB-level constraints and firmware to Cloud AI APIs and mobile app UIs. Agile & Reliable: Certified Scrum Master with a focus on System Engineering discipline—I deliver on time and budget. Featured Projects & Case Studies 1. Edge AI & Embedded Vision Smart IoT Vision System (ESP32-S3 & OV5640): Engineered a low-power IoT camera solution capable of on-device image capturing and processing. Handled driver integration and memory optimization for the ESP32 architecture. Edge Computing Optimization (Nvidia Jetson): Architected AI solutions utilizing Edge GPUs and NPUs. Focused on migrating heavy cloud workloads to local hardware for reduced latency and offline capability. Consumer Electronics (Honeywell & Cricut): Architected a Next-Gen DAS (DIY Awareness & Security) device integrating Amazon Echo, Z-Wave, Zigbee, and proprietary wireless protocols. Developed embedded firmware for an IoT Thermostat competing directly with Nest. Led development for Universal Remote Controls and IR Blasters. 2. Generative AI (LLMs) & RAG Systems RAG System for Insurance Processing: Designed and built a Retrieval-Augmented Generation (RAG) system to automate insurance claim analysis. The system ingests complex policy documents and provides accurate, context-aware answers to claims adjusters. Voice-First AI Agents: Resort Receptionist Agent: Developed a conversational AI voice agent to handle booking inquiries and guest services autonomously. In-Car Voice Assistant: Architected a voice-command application for automotive use, enabling hands-free booking, shopping, and travel planning while driving. Document Intelligence Engine: Led full-stack development of a tool using ChatGPT APIs to extract structured data from resumes and unstructured legal documents. 3. Full-Stack Web & Mobile Applications HealthTech Mobile Platform ("Qavach" & "E-pad"): Developed comprehensive preventive healthcare solutions for children. Features include appointment booking, prescription digitization via camera (OCR), and secure cloud storage. Built using Flutter for mobile and AWS for the backend. Digital Wellness App ("Disconnect Daily"): Created a gamified mobile application (Flutter) aimed at reducing screen time for children (ages 5-11). Worked closely with medical professionals to implement logic that promotes healthy digital habits. Commercial Security Mobile App: Built a cross-platform Flutter app for managing commercial security systems, featuring real-time alerts and device management. Technical Arsenal 🤖 Artificial Intelligence & Machine Learning Generative AI: LLM Integration (OpenAI/ChatGPT, Gemini, DeepSeek, Llama, Mistral), RAG Pipelines, AI Agents. Computer Vision: OpenCV, Object Detection, Face Recognition, On-device Vision. Edge AI: Nvidia Jetson, NPU optimization, TinyML. Frameworks: TensorFlow, PyTorch, Keras, Scikit-learn, Pandas, NumPy. 📱 Full-Stack & Mobile Mobile: Flutter (Dart), React Native, Kotlin, Swift. Web: Node.js, React.js, Next.js, Python, PHP. Databases: Google Firestore, PostgreSQL, MongoDB, MySQL 🔌 Embedded & IoT Hardware: ESP32, 8/16/32-bit Microcontrollers, Raspberry Pi. Protocols: MQTT, Z-Wave, Zigbee, BLE, Wi-Fi. Languages: C, C++, Embedded C. ☁️ Cloud & DevOps Platforms: AWS, Microsoft Azure, Google Cloud Platform (GCP). Tools: Docker, CI/CD Pipelines, Git. Certifications & Governance Patents: 2 Filed Patents (US 9743252 and US 20190221092). Process: Certified Agile Scrum Master. Governance: Expertise in AI Ethics, bias mitigation, and data privacy/security standards.

👋 Hi, I’m a CTO of Iomico IoT development company. We have over 10+ years of experience in firmware & and electronics and over 20 years of experience in software development. We successfully completed a number of IoT projects in the aerospace, manufacturing, logistics, retail, automotive, healthcare, and consumer industries. I encourage you to learn more about Iomico in our intro presentation: 👉 cutt.ly/KXdNUcf 💥We specialize in creating advanced hardware, firmware, and software solutions for start-ups and established companies. Moreover, we have a very experienced and trustworthy development team passionate about technology and innovation. That’s why we deliver you the best project result and keep you away from any risks. 🎯 Electronics engineering: ✔️radio-electronic parts research & selection ✔️Schematics ✔️PCB design ✔️Simulations & Analysis ✔️Review of your current designs 🎯 Firmware technologies we use: ✔️C/C++, Verilog, VHDL, Qt, Python ✔️Baremetal ✔️RTOS (Zephyr, FreeRTOS, AWS RTOS, Chibios, RT-Linux). ✔️Embedded Linux (OpenWRT, uCLinux, Yocto, and stand-alone Linux applications/services/drivers) ✔️Protocols: MQTT, TCP, WebSockets, HTTS(S), FTP, UDP, HTTP, SSH, etc. ✔️Wired and Wireless Networking (BLE / Bluetooth, ZigBee/Z-Wave, UWB, Lora / LoraWAN / 6LoWPAN, RFID, NFC, Mesh Networks, Thread, MLM2M, GSM 3G / 4G /5G, LTE, NB-IOT, Wi-Fi, GPS / GNSS (Galileo, GLONASS, BeiDou), PCIe Gen2/3/4, SATA R.3.x, LVDS, SDI, 10/100/1000 Ethernet, USB up to 3.2, HDMI, MIPI-CSI, MIPI-DSI and more). ✔️Design of MCU/CPU firmware (Nordic Semi (NRF52832, NRF52840, NRF5340, NRF9160, NRF7002), Rockchip (RK3399, RK3328), NXP (i.MX8, i.MX9, Layerscape), STM (STM32H7 and others), Microchip/Atmel, Texas Instruments (Sitara AM57x series), Espressif (ESP32, ESP8266), Renesas, Cypress, Infineon, Nvidia Jetson and any others). ✔️FPGA: Lattice, Xilinx, Intel, Microchip. 🎯 Software technologies we use: ✔️Java, Kotlin, PHP, C#, JavaScript (Angular, React, VueJS, NodeJS). ✔️iOS (Swift, Objective C) and Android (Java, Kotlin) programming, AOSP, cross-platform QT, and React Native. ✔️MySQL, PostgreSQL, OracleDB, MSSQL, MangoDB, RedisDB, and other cloud relational and NoSQL databases. ✔️Messaging queue tools like RabbitMQ, Kafka. ✔️Public and private clouds: AWS, Google Cloud, Digital Ocean, OpenStack. ✔️Cloud clustering / horizontal scaling: Docker, Kubernetes. ✔️OTA: Mendor.io 🎯 Edge AI / Computer Vision: ✔️PyTorch, TensorFlow, MediaPipe, OpenCV, Deepstream ✔️Research and development solutions for “smart” edge devices 🎯OTA: Mender.io, RAUC, Esper and etc. Let me explain how everything works: 1️⃣ First of all, we sign an NDA and arrange a conf call to learn more about your project. 2️⃣ If we agree on each other’s terms, you shall make a prepayment of an amount equal to two weeks of my work on the project. This prepayment shall be used as an advance retainer for my services. 3️⃣ Then, I get down to work alone or with my iomico team, and the payments should be done biweekly. 4️⃣ Please pay attention to my hourly rate and that I work only from the Iomico agency. Furthermore, having released the code, I guarantee the support of the developed product. If you’re ready to implement your ideas (no matter how crazy they are), don't hesitate to contact me here or write to my company Partnership Manager, Michael Bychko - m.bychko@iomico.us.

• Experienced with Internet Service Providers (ISP) • Passionate about technology since the age of 7 I have a strong academic background in computer science and linguistics, and I'm continuously advancing my knowledge through projects with Google Cloud Platform, Nvidia, Stanford University, and MIT. ☼ Additionally, I have experience securing federal financial aid grants for education. Skills: Machine Learning (Tensorflow, Natural Language Processing, Computer Vision) Development: Java, Unix Development, Microsoft Development, Visual Studio Online, Delphi, Fortran, Pascal Cloud & DevOps: Google Cloud Platform (GCP), AWS, VirtualBox Networking: TCP/IP, Cisco, DNS, HTTP, SSH, FTP, VPN, VOIP Programming & Scripting: bash, cpp, Python, CUDA, OpenACC, OpenCV, OpenMP Tools: Stripe, Adobe, Autodesk, R, 1C Database & Web: MySQL, PHP, HTML Embedded Systems: armhf, Nvidia Jetson **Project Links**: - **NVIDIA Developer Profile**: [NVIDIA DevTalk](devtalk.nvidia.com/member/Andrey1984/) - **Nvidia Jetson Development**: [Viziochron](sites.google.com/site/jetsontricks/) - **GitHub**: [github.com/AndreV84](github.com/AndreV84/) - **Kaggle**: [kaggle.com/avolod](kaggle.com/avolod) - **Project Management**: [projectmanagement.com](projectmanagement.com/profile/AndreyVolodin) ---------------------------------------------------------------------------------------------------- CV: docs.google.com/document/d/1LY_GJbsqMRzPHIxszqhM22jUKA3kuhhWaari7WIfCCM/ ---------------------------------------------------------------------------------------------------- **Certifications**: - [Credential Wallet](credential.net/profile/andreyvolodin27/wallet) - [Statement 1](prod-cert-bucket.s3.amazonaws.com/downloads/d246996e12dc4f37aea85550fa8c7e6b/Statement.pdf) - [Statement 2](prod-cert-bucket.s3.amazonaws.com/downloads/4d55a64fb7d4419d8e1db46babd2c234/Statement.pdf) - [Microsoft Virtual Academy](mva.microsoft.com/RewardEvidence.aspx/?key=u1tvx7Dl8W6mvRfAuyEvCg2)

Greetings! I am Zafar. I’m an Embedded Systems Engineer with over 8 years of experience. I’ve worked on a variety of projects, including industrial products, Android app, and advanced embedded systems. I’ve completed 20 projects and am known for being creative, and skilled in my work. ✨ Why Collaborate with Me? ✨ - Versatile Expert: My skill set spans across PCB design specific to single layer, double layers o multi laye pcb using Eagle, EasyEdA, Altium, or Kicad as well as creating intricate 3D models with SolidWorks, allowing me to seamlessly integrate hardware with design. - Seasoned Programmer: With proficiency in C, Python, C++, I am equipped to handle a broad spectrum of challenges, from low-level firmware development to high-level application programming. - Microcontroller Mastery: I have extensive experience with a wide variety of microcontrollers, including Arduino, Raspberry Pi, ESP32 and STM32, ensuring optimal performance for every embedded system. - Wireless Communication Specialist: I am proficient in WiFi, BLE, WiFi Mesh, and BLE Mesh networks, utilizing modules such as ESP8266, NodeMCU, ESP32 (WiFi, BLE, and mesh capabilities). - Motor & Driver Expertise: I have hands-on experience with servo motors, DC motors, stepper motors, and a range of motor drivers, ensuring precise control in robotics and automation projects. - GSM & Modem Integration: I have integrated GSM modems into numerous IoT and communication projects, providing reliable long-distance connectivity. - Communication Protocols Expertise: I have strong experience in interfacing with different protocols, including UART, SPI, I2C, RS485, Modbus, ensuring seamless communication between devices in embedded systems and third party devices. - Database Integration: I am skilled in using databases like AWS, Firebase, and ThingSpeak for robust data storage, real-time processing, and analytics. 🌟 What You Can Expect 🌟 - Proven Reliability: I have a solid track record of delivering high-quality projects on time, with meticulous attention to detail and problem-solving capabilities. - Clear Communication: You can expect prompt, professional communication in fluent English, ensuring project clarity and smooth progress from start to finish. 🚀 Let’s Collaborate! 🚀 I’m ready to bring my extensive expertise in embedded systems, robotics, and wireless communication to help you turn your innovative ideas into reality. Whether it’s developing sophisticated IoT devices, creating customized Android applications, or designing embedded solutions, I am confident in my ability to exceed your expectations. I look forward to discussing how my background and skills align with your project needs. Let’s connect and make your vision a reality.